12961595 has 8 divisors (see below), whose sum is σ = 15575280. Its totient is φ = 10355040.

The previous prime is 12961583. The next prime is 12961601. The reversal of 12961595 is 59516921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12961595 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3836 + ... + 6374.

It is an arithmetic number, because the mean of its divisors is an integer number (1946910).

Almost surely, 2^12961595 is an apocalyptic number.

12961595 is a deficient number, since it is larger than the sum of its proper divisors (2613685).

12961595 is a wasteful number, since it uses less digits than its factorization.

12961595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565.

The product of its digits is 24300, while the sum is 38.

The square root of 12961595 is about 3600.2215209623. The cubic root of 12961595 is about 234.9016942074.

The spelling of 12961595 in words is "twelve million, nine hundred sixty-one thousand, five hundred ninety-five".